61862057 has 4 divisors (see below), whose sum is σ = 61902720. Its totient is φ = 61821396.

The previous prime is 61862033. The next prime is 61862063. The reversal of 61862057 is 75026816.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61862057 - 2⁸ = 61861801 is a prime.

It is a super-3 number, since 3×61862057³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61862027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17957 + ... + 21122.

It is an arithmetic number, because the mean of its divisors is an integer number (15475680).

Almost surely, 2^61862057 is an apocalyptic number.

It is an amenable number.

61862057 is a deficient number, since it is larger than the sum of its proper divisors (40663).

61862057 is a wasteful number, since it uses less digits than its factorization.

61862057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40662.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 61862057 is about 7865.2436071618. The cubic root of 61862057 is about 395.4954142767.

The spelling of 61862057 in words is "sixty-one million, eight hundred sixty-two thousand, fifty-seven".