61057360 has 80 divisors (see below), whose sum is σ = 174738816. Its totient is φ = 19321344.

The previous prime is 61057357. The next prime is 61057411. The reversal of 61057360 is 6375016.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3087 + ... + 11473.

Almost surely, 2^61057360 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61057360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87369408).

61057360 is an abundant number, since it is smaller than the sum of its proper divisors (113681456).

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

61057360 is a wasteful number, since it uses less digits than its factorization.

61057360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8420 (or 8414 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 61057360 is about 7813.9209107848. The cubic root of 61057360 is about 393.7730662560.

It can be divided in two parts, 610 and 57360, that added together give a triangular number (57970 = T₃₄₀).

The spelling of 61057360 in words is "sixty-one million, fifty-seven thousand, three hundred sixty".