61515095 has 12 divisors (see below), whose sum is σ = 78417624. Its totient is φ = 46316160.

The previous prime is 61515071. The next prime is 61515101. The reversal of 61515095 is 59051516.

It is not a de Polignac number, because 61515095 - 2⁶ = 61515031 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19841 + ... + 22730.

It is an arithmetic number, because the mean of its divisors is an integer number (6534802).

Almost surely, 2^61515095 is an apocalyptic number.

61515095 is a deficient number, since it is larger than the sum of its proper divisors (16902529).

61515095 is a wasteful number, since it uses less digits than its factorization.

61515095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42610 (or 42593 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 32.

The square root of 61515095 is about 7843.1559336787. The cubic root of 61515095 is about 394.7546304982.

The spelling of 61515095 in words is "sixty-one million, five hundred fifteen thousand, ninety-five".