61057490 has 16 divisors (see below), whose sum is σ = 118357848. Its totient is φ = 22544256.

The previous prime is 61057483. The next prime is 61057519. The reversal of 61057490 is 9475016.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 43020481 + 18037009 = 6559^2 + 4247^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234707 + ... + 234966.

Almost surely, 2^61057490 is an apocalyptic number.

61057490 is a deficient number, since it is larger than the sum of its proper divisors (57300358).

61057490 is a wasteful number, since it uses less digits than its factorization.

61057490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469693.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 61057490 is about 7813.9292292674. The cubic root of 61057490 is about 393.7733457225.

The spelling of 61057490 in words is "sixty-one million, fifty-seven thousand, four hundred ninety".