61532534 has 24 divisors (see below), whose sum is σ = 108210168. Its totient is φ = 26164320.

The previous prime is 61532531. The next prime is 61532563. The reversal of 61532534 is 43523516.

It is a super-2 number, since 2×61532534² = 7572505480922312, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 61532497 and 61532506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61532531) 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, 10442 + ... + 15234.

It is an arithmetic number, because the mean of its divisors is an integer number (4508757).

Almost surely, 2^61532534 is an apocalyptic number.

61532534 is a deficient number, since it is larger than the sum of its proper divisors (46677634).

61532534 is a wasteful number, since it uses less digits than its factorization.

61532534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4940 (or 4933 counting only the distinct ones).

The product of its digits is 10800, while the sum is 29.

The square root of 61532534 is about 7844.2675885005. The cubic root of 61532534 is about 394.7919301538.

The spelling of 61532534 in words is "sixty-one million, five hundred thirty-two thousand, five hundred thirty-four".