61650525 has 12 divisors (see below), whose sum is σ = 101928992. Its totient is φ = 32880240.

The previous prime is 61650521. The next prime is 61650529. The reversal of 61650525 is 52505616.

It is an interprime number because it is at equal distance from previous prime (61650521) and next prime (61650529).

It is not a de Polignac number, because 61650525 - 2² = 61650521 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61650492 and 61650501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61650521) 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, 410929 + ... + 411078.

Almost surely, 2^61650525 is an apocalyptic number.

It is an amenable number.

61650525 is a deficient number, since it is larger than the sum of its proper divisors (40278467).

61650525 is a wasteful number, since it uses less digits than its factorization.

61650525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822020 (or 822015 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 61650525 is about 7851.7848289418. The cubic root of 61650525 is about 395.0441119352.

The spelling of 61650525 in words is "sixty-one million, six hundred fifty thousand, five hundred twenty-five".