61025931 has 12 divisors (see below), whose sum is σ = 88380240. Its totient is φ = 40577040.

The previous prime is 61025911. The next prime is 61025941. The reversal of 61025931 is 13952016.

It is not a de Polignac number, because 61025931 - 2¹¹ = 61023883 is a prime.

It is a super-2 number, since 2×61025931² = 7448328508833522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61025895 and 61025904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61025911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5215 + ... + 12216.

It is an arithmetic number, because the mean of its divisors is an integer number (7365020).

Almost surely, 2^61025931 is an apocalyptic number.

61025931 is a deficient number, since it is larger than the sum of its proper divisors (27354309).

61025931 is a wasteful number, since it uses less digits than its factorization.

61025931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17826 (or 17823 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 61025931 is about 7811.9095616885. The cubic root of 61025931 is about 393.7054903581.

Adding to 61025931 its reverse (13952016), we get a palindrome (74977947).

The spelling of 61025931 in words is "sixty-one million, twenty-five thousand, nine hundred thirty-one".