61503212 has 12 divisors (see below), whose sum is σ = 113961960. Its totient is φ = 28942656.

The previous prime is 61503199. The next prime is 61503227. The reversal of 61503212 is 21230516.

61503212 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

61503212 is strictly pandigital in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 452162 + ... + 452297.

It is an arithmetic number, because the mean of its divisors is an integer number (9496830).

Almost surely, 2^61503212 is an apocalyptic number.

It is an amenable number.

61503212 is a deficient number, since it is larger than the sum of its proper divisors (52458748).

61503212 is a wasteful number, since it uses less digits than its factorization.

61503212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904480 (or 904478 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 61503212 is about 7842.3983576454. The cubic root of 61503212 is about 394.7292103345.

Adding to 61503212 its reverse (21230516), we get a palindrome (82733728).

The spelling of 61503212 in words is "sixty-one million, five hundred three thousand, two hundred twelve".