61508070 has 48 divisors (see below), whose sum is σ = 172225872. Its totient is φ = 15140160.

The previous prime is 61508059. The next prime is 61508093. The reversal of 61508070 is 7080516.

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25116 + ... + 27455.

It is an arithmetic number, because the mean of its divisors is an integer number (3588039).

Almost surely, 2^61508070 is an apocalyptic number.

61508070 is an abundant number, since it is smaller than the sum of its proper divisors (110717802).

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

61508070 is a wasteful number, since it uses less digits than its factorization.

61508070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52597 (or 52594 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 61508070 is about 7842.7080782087. The cubic root of 61508070 is about 394.7396029842.

Adding to 61508070 its reverse (7080516), we get a palindrome (68588586).

The spelling of 61508070 in words is "sixty-one million, five hundred eight thousand, seventy".