61402516 has 12 divisors (see below), whose sum is σ = 122805088. Its totient is φ = 26315352.

The previous prime is 61402493. The next prime is 61402519. The reversal of 61402516 is 61520416.

61402516 is an admirable number.

It is a super-2 number, since 2×61402516² = 7540537942260512, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61402519) 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, 1096446 + ... + 1096501.

Almost surely, 2^61402516 is an apocalyptic number.

It is an amenable number.

61402516 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61402516 is a wasteful number, since it uses less digits than its factorization.

61402516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2192958 (or 2192956 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 61402516 is about 7835.9757528977. The cubic root of 61402516 is about 394.5136694802.

The spelling of 61402516 in words is "sixty-one million, four hundred two thousand, five hundred sixteen".