61525477 has 16 divisors (see below), whose sum is σ = 70120960. Its totient is φ = 53514432.

The previous prime is 61525469. The next prime is 61525489. The reversal of 61525477 is 77452516.

It is a cyclic number.

It is not a de Polignac number, because 61525477 - 2³ = 61525469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61523477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54523 + ... + 55639.

It is an arithmetic number, because the mean of its divisors is an integer number (4382560).

Almost surely, 2^61525477 is an apocalyptic number.

It is an amenable number.

61525477 is a deficient number, since it is larger than the sum of its proper divisors (8595483).

61525477 is a wasteful number, since it uses less digits than its factorization.

61525477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372.

The product of its digits is 58800, while the sum is 37.

The square root of 61525477 is about 7843.8177566795. The cubic root of 61525477 is about 394.7768370370.

The spelling of 61525477 in words is "sixty-one million, five hundred twenty-five thousand, four hundred seventy-seven".