51520610 has 16 divisors (see below), whose sum is σ = 92892096. Its totient is φ = 20573808.

The previous prime is 51520583. The next prime is 51520627. The reversal of 51520610 is 1602515.

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, 2489 + ... + 10451.

It is an arithmetic number, because the mean of its divisors is an integer number (5805756).

Almost surely, 2^51520610 is an apocalyptic number.

51520610 is a deficient number, since it is larger than the sum of its proper divisors (41371486).

51520610 is a wasteful number, since it uses less digits than its factorization.

51520610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8617.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 51520610 is about 7177.7858703085. The cubic root of 51520610 is about 372.1005672910.

It can be divided in two parts, 5 and 1520610, that multiplied together give a triangular number (7603050 = T₃₈₉₉).

The spelling of 51520610 in words is "fifty-one million, five hundred twenty thousand, six hundred ten".