61498516 has 18 divisors (see below), whose sum is σ = 113587530. Its totient is φ = 29130192.

The previous prime is 61498499. The next prime is 61498517. The reversal of 61498516 is 61589416.

It can be written as a sum of positive squares in only one way, i.e., 41731600 + 19766916 = 6460^2 + 4446^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61498517) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19851 + ... + 22738.

Almost surely, 2^61498516 is an apocalyptic number.

It is an amenable number.

61498516 is a deficient number, since it is larger than the sum of its proper divisors (52089014).

61498516 is a wasteful number, since it uses less digits than its factorization.

61498516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42631 (or 42610 counting only the distinct ones).

The product of its digits is 51840, while the sum is 40.

The square root of 61498516 is about 7842.0989537241. The cubic root of 61498516 is about 394.7191637288.

The spelling of 61498516 in words is "sixty-one million, four hundred ninety-eight thousand, five hundred sixteen".