61528552 has 16 divisors (see below), whose sum is σ = 119088000. Its totient is φ = 29771760.

The previous prime is 61528501. The next prime is 61528591. The reversal of 61528552 is 25582516.

It is a super-2 number, since 2×61528552² = 7571525422433408, which contains 22 as substring.

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, 123802 + ... + 124297.

It is an arithmetic number, because the mean of its divisors is an integer number (7443000).

Almost surely, 2^61528552 is an apocalyptic number.

61528552 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

61528552 is a deficient number, since it is larger than the sum of its proper divisors (57559448).

61528552 is a wasteful number, since it uses less digits than its factorization.

61528552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248136 (or 248132 counting only the distinct ones).

The product of its digits is 24000, while the sum is 34.

The square root of 61528552 is about 7844.0137684734. The cubic root of 61528552 is about 394.7834138168.

The spelling of 61528552 in words is "sixty-one million, five hundred twenty-eight thousand, five hundred fifty-two".