42515495 has 16 divisors (see below), whose sum is σ = 56844288. Its totient is φ = 30260640.

The previous prime is 42515491. The next prime is 42515507. The reversal of 42515495 is 59451524.

42515495 = 928² + 929² + ... + 974².

It is a happy number.

It is not a de Polignac number, because 42515495 - 2² = 42515491 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42515491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5639 + ... + 10808.

It is an arithmetic number, because the mean of its divisors is an integer number (3552768).

Almost surely, 2^42515495 is an apocalyptic number.

42515495 is a deficient number, since it is larger than the sum of its proper divisors (14328793).

42515495 is a wasteful number, since it uses less digits than its factorization.

42515495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16510.

The product of its digits is 36000, while the sum is 35.

The square root of 42515495 is about 6520.3907091523. The cubic root of 42515495 is about 349.0190081135.

The spelling of 42515495 in words is "forty-two million, five hundred fifteen thousand, four hundred ninety-five".