61012506 has 16 divisors (see below), whose sum is σ = 122135904. Its totient is φ = 20319024.

The previous prime is 61012499. The next prime is 61012513. The reversal of 61012506 is 60521016.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (61012499) and next prime (61012513).

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, 3681 + ... + 11643.

It is an arithmetic number, because the mean of its divisors is an integer number (7633494).

Almost surely, 2^61012506 is an apocalyptic number.

61012506 is an abundant number, since it is smaller than the sum of its proper divisors (61123398).

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

61012506 is a wasteful number, since it uses less digits than its factorization.

61012506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9245.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 61012506 is about 7811.0502494863. The cubic root of 61012506 is about 393.6766180205.

The spelling of 61012506 in words is "sixty-one million, twelve thousand, five hundred six".