61882531 has 4 divisors (see below), whose sum is σ = 62298000. Its totient is φ = 61467064.

The previous prime is 61882523. The next prime is 61882543. The reversal of 61882531 is 13528816.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61882531 - 2³ = 61882523 is a prime.

It is a super-2 number, since 2×61882531² = 7658895285931922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61882511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207511 + ... + 207808.

It is an arithmetic number, because the mean of its divisors is an integer number (15574500).

Almost surely, 2^61882531 is an apocalyptic number.

61882531 is a deficient number, since it is larger than the sum of its proper divisors (415469).

61882531 is a wasteful number, since it uses less digits than its factorization.

61882531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415468.

The product of its digits is 11520, while the sum is 34.

The square root of 61882531 is about 7866.5450484949. The cubic root of 61882531 is about 395.5390408030.

The spelling of 61882531 in words is "sixty-one million, eight hundred eighty-two thousand, five hundred thirty-one".